Comments

Have a dealer that handles your motor pull the OBD error codes to see what the alarms are for. I had a similar problem on a 220hp Mercury I/O with a 4.3 MPI motor. The codes showed low oil pressure and low water pressure. They put Mercury's highest quality synthetic oil in the motor with a racing filter which allowed us to put in an extra half quart of oil in the engine. Also put in a new water pump. The boat runs great now.